* [PATCH v8 0/3] Xilinx ZynqMP USB fixes
@ 2022-01-26 23:40 Robert Hancock
2022-01-26 23:40 ` [PATCH v8 1/3] usb: dwc3: xilinx: fix uninitialized return value Robert Hancock
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Robert Hancock @ 2022-01-26 23:40 UTC (permalink / raw)
To: linux-usb
Cc: balbi, gregkh, michal.simek, manish.narani, sean.anderson,
robh+dt, devicetree, piyush.mehta, Robert Hancock
Some fixes related to the Xilinx ZynqMP DWC3 wrapper driver.
Changes since v7:
-Drop patches already merged. Add a patch to fix a bug found in one
of those previous patches.
-Fixed error handling for reset GPIO
Changes since v6:
-skip USB core resets and register settings which are not necessary
when USB3 PHY is not specified
-added patches to implement ULPI PHY reset in driver
Changes since v5:
-code formatting fixes, no functional change
Changes since v4:
-dropped DWC3 core patches as they are superseded by Sean Anderson's
patchset "usb: dwc3: Calculate REFCLKPER et. al. from reference clock",
ZynqMP-specific patches unchanged
Changes since v3:
-fixed DT schema dt-doc-validate error
Changes since v2:
-additional kerneldoc fixes
Changes since v1:
-added DT binding documentation for new attribute
-kerneldoc formatting and reworded comments
*** BLURB HERE ***
Robert Hancock (3):
usb: dwc3: xilinx: fix uninitialized return value
dt-bindings: usb: dwc3-xilinx: Added reset-gpios
usb: dwc3: xilinx: Add ULPI PHY reset handling
.../devicetree/bindings/usb/dwc3-xilinx.yaml | 4 ++++
drivers/usb/dwc3/dwc3-xilinx.c | 21 ++++++++++++++++++-
2 files changed, 24 insertions(+), 1 deletion(-)
--
2.31.1
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v8 1/3] usb: dwc3: xilinx: fix uninitialized return value
2022-01-26 23:40 [PATCH v8 0/3] Xilinx ZynqMP USB fixes Robert Hancock
@ 2022-01-26 23:40 ` Robert Hancock
2022-01-26 23:40 ` [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios Robert Hancock
2022-01-26 23:40 ` [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling Robert Hancock
2 siblings, 0 replies; 8+ messages in thread
From: Robert Hancock @ 2022-01-26 23:40 UTC (permalink / raw)
To: linux-usb
Cc: balbi, gregkh, michal.simek, manish.narani, sean.anderson,
robh+dt, devicetree, piyush.mehta, Robert Hancock
A previous patch to skip part of the initialization when a USB3 PHY was
not present could result in the return value being uninitialized in that
case, causing spurious probe failures. Initialize ret to 0 to avoid this.
Fixes: 9678f3361afc ("usb: dwc3: xilinx: Skip resets and USB3 register settings for USB2.0 mode")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
---
drivers/usb/dwc3/dwc3-xilinx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
index e14ac15e24c3..a6f3a9b38789 100644
--- a/drivers/usb/dwc3/dwc3-xilinx.c
+++ b/drivers/usb/dwc3/dwc3-xilinx.c
@@ -99,7 +99,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
struct device *dev = priv_data->dev;
struct reset_control *crst, *hibrst, *apbrst;
struct phy *usb3_phy;
- int ret;
+ int ret = 0;
u32 reg;
usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
--
2.31.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios
2022-01-26 23:40 [PATCH v8 0/3] Xilinx ZynqMP USB fixes Robert Hancock
2022-01-26 23:40 ` [PATCH v8 1/3] usb: dwc3: xilinx: fix uninitialized return value Robert Hancock
@ 2022-01-26 23:40 ` Robert Hancock
2022-02-02 0:58 ` Rob Herring
2022-01-26 23:40 ` [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling Robert Hancock
2 siblings, 1 reply; 8+ messages in thread
From: Robert Hancock @ 2022-01-26 23:40 UTC (permalink / raw)
To: linux-usb
Cc: balbi, gregkh, michal.simek, manish.narani, sean.anderson,
robh+dt, devicetree, piyush.mehta, Robert Hancock
Update DT binding to reflect new reset-gpios property.
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
---
Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
index f77c16e203d5..823ce731e95f 100644
--- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
+++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
@@ -59,6 +59,10 @@ properties:
- const: usb_hibrst
- const: usb_apbrst
+ reset-gpios:
+ description: Optional GPIO connected to ULPI PHY reset line.
+ maxItems: 1
+
phys:
minItems: 1
maxItems: 2
--
2.31.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling
2022-01-26 23:40 [PATCH v8 0/3] Xilinx ZynqMP USB fixes Robert Hancock
2022-01-26 23:40 ` [PATCH v8 1/3] usb: dwc3: xilinx: fix uninitialized return value Robert Hancock
2022-01-26 23:40 ` [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios Robert Hancock
@ 2022-01-26 23:40 ` Robert Hancock
2022-01-27 20:10 ` Sean Anderson
2022-02-09 16:56 ` Piyush Mehta
2 siblings, 2 replies; 8+ messages in thread
From: Robert Hancock @ 2022-01-26 23:40 UTC (permalink / raw)
To: linux-usb
Cc: balbi, gregkh, michal.simek, manish.narani, sean.anderson,
robh+dt, devicetree, piyush.mehta, Robert Hancock
Hook up an optional GPIO-based reset for the connected USB ULPI PHY
device. This is typically already done by the first-stage boot loader,
however it can be more robust to ensure this reset is done prior to
loading the driver in Linux.
Based on a patch "usb: dwc3: xilinx: Add gpio-reset support" in the
Xilinx kernel tree by Piyush Mehta <piyush.mehta@xilinx.com>.
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
---
drivers/usb/dwc3/dwc3-xilinx.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
index a6f3a9b38789..1ee6011ada44 100644
--- a/drivers/usb/dwc3/dwc3-xilinx.c
+++ b/drivers/usb/dwc3/dwc3-xilinx.c
@@ -11,6 +11,7 @@
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/of.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/of_platform.h>
@@ -101,6 +102,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
struct phy *usb3_phy;
int ret = 0;
u32 reg;
+ struct gpio_desc *reset_gpio;
usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
if (IS_ERR(usb3_phy)) {
@@ -110,6 +112,14 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
goto err;
}
+ reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(reset_gpio)) {
+ ret = PTR_ERR(reset_gpio);
+ dev_err_probe(dev, ret,
+ "Failed to get reset gpio\n");
+ goto err;
+ }
+
/*
* The following core resets are not required unless a USB3 PHY
* is used, and the subsequent register settings are not required
@@ -201,6 +211,15 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
}
skip_usb3_phy:
+ /* ulpi reset via gpio-modepin or gpio-framework driver */
+ if (reset_gpio) {
+ /* Toggle ulpi to reset the phy. */
+ gpiod_set_value(reset_gpio, 0);
+ usleep_range(5000, 10000); /* delay */
+ gpiod_set_value(reset_gpio, 1);
+ usleep_range(5000, 10000); /* delay */
+ }
+
/*
* This routes the USB DMA traffic to go through FPD path instead
* of reaching DDR directly. This traffic routing is needed to
--
2.31.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling
2022-01-26 23:40 ` [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling Robert Hancock
@ 2022-01-27 20:10 ` Sean Anderson
2022-01-27 21:45 ` Robert Hancock
2022-02-09 16:56 ` Piyush Mehta
1 sibling, 1 reply; 8+ messages in thread
From: Sean Anderson @ 2022-01-27 20:10 UTC (permalink / raw)
To: Robert Hancock, linux-usb
Cc: balbi, gregkh, michal.simek, manish.narani, robh+dt, devicetree,
piyush.mehta
Hi Rob,
On 1/26/22 6:40 PM, Robert Hancock wrote:
> Hook up an optional GPIO-based reset for the connected USB ULPI PHY
> device. This is typically already done by the first-stage boot loader,
> however it can be more robust to ensure this reset is done prior to
> loading the driver in Linux.
>
> Based on a patch "usb: dwc3: xilinx: Add gpio-reset support" in the
> Xilinx kernel tree by Piyush Mehta <piyush.mehta@xilinx.com>.
>
> Signed-off-by: Robert Hancock <robert.hancock@calian.com>
> ---
> drivers/usb/dwc3/dwc3-xilinx.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
> index a6f3a9b38789..1ee6011ada44 100644
> --- a/drivers/usb/dwc3/dwc3-xilinx.c
> +++ b/drivers/usb/dwc3/dwc3-xilinx.c
> @@ -11,6 +11,7 @@
> #include <linux/slab.h>
> #include <linux/clk.h>
> #include <linux/of.h>
> +#include <linux/gpio/consumer.h>
> #include <linux/platform_device.h>
> #include <linux/dma-mapping.h>
> #include <linux/of_platform.h>
> @@ -101,6 +102,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
> struct phy *usb3_phy;
> int ret = 0;
> u32 reg;
> + struct gpio_desc *reset_gpio;
>
> usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
> if (IS_ERR(usb3_phy)) {
> @@ -110,6 +112,14 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
> goto err;
> }
>
> + reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
> + if (IS_ERR(reset_gpio)) {
> + ret = PTR_ERR(reset_gpio);
> + dev_err_probe(dev, ret,
> + "Failed to get reset gpio\n");
> + goto err;
> + }
> +
> /*
> * The following core resets are not required unless a USB3 PHY
> * is used, and the subsequent register settings are not required
> @@ -201,6 +211,15 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
> }
>
> skip_usb3_phy:
> + /* ulpi reset via gpio-modepin or gpio-framework driver */
> + if (reset_gpio) {
> + /* Toggle ulpi to reset the phy. */
> + gpiod_set_value(reset_gpio, 0);
> + usleep_range(5000, 10000); /* delay */
> + gpiod_set_value(reset_gpio, 1);
> + usleep_range(5000, 10000); /* delay */
> + }
> +
> /*
> * This routes the USB DMA traffic to go through FPD path instead
> * of reaching DDR directly. This traffic routing is needed to
>
Do we need to have this in dwc3? Why not just use the usb-nop-xceiv driver (aka usb_phy_generic)?
--Sean
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling
2022-01-27 20:10 ` Sean Anderson
@ 2022-01-27 21:45 ` Robert Hancock
0 siblings, 0 replies; 8+ messages in thread
From: Robert Hancock @ 2022-01-27 21:45 UTC (permalink / raw)
To: sean.anderson, linux-usb
Cc: manish.narani, michal.simek, piyush.mehta, gregkh, balbi,
robh+dt, devicetree
On Thu, 2022-01-27 at 15:10 -0500, Sean Anderson wrote:
> Hi Rob,
>
> On 1/26/22 6:40 PM, Robert Hancock wrote:
> > Hook up an optional GPIO-based reset for the connected USB ULPI PHY
> > device. This is typically already done by the first-stage boot loader,
> > however it can be more robust to ensure this reset is done prior to
> > loading the driver in Linux.
> >
> > Based on a patch "usb: dwc3: xilinx: Add gpio-reset support" in the
> > Xilinx kernel tree by Piyush Mehta <piyush.mehta@xilinx.com>.
> >
> > Signed-off-by: Robert Hancock <robert.hancock@calian.com>
> > ---
> > drivers/usb/dwc3/dwc3-xilinx.c | 19 +++++++++++++++++++
> > 1 file changed, 19 insertions(+)
> >
> > diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-
> > xilinx.c
> > index a6f3a9b38789..1ee6011ada44 100644
> > --- a/drivers/usb/dwc3/dwc3-xilinx.c
> > +++ b/drivers/usb/dwc3/dwc3-xilinx.c
> > @@ -11,6 +11,7 @@
> > #include <linux/slab.h>
> > #include <linux/clk.h>
> > #include <linux/of.h>
> > +#include <linux/gpio/consumer.h>
> > #include <linux/platform_device.h>
> > #include <linux/dma-mapping.h>
> > #include <linux/of_platform.h>
> > @@ -101,6 +102,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> > *priv_data)
> > struct phy *usb3_phy;
> > int ret = 0;
> > u32 reg;
> > + struct gpio_desc *reset_gpio;
> >
> > usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
> > if (IS_ERR(usb3_phy)) {
> > @@ -110,6 +112,14 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> > *priv_data)
> > goto err;
> > }
> >
> > + reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
> > + if (IS_ERR(reset_gpio)) {
> > + ret = PTR_ERR(reset_gpio);
> > + dev_err_probe(dev, ret,
> > + "Failed to get reset gpio\n");
> > + goto err;
> > + }
> > +
> > /*
> > * The following core resets are not required unless a USB3 PHY
> > * is used, and the subsequent register settings are not required
> > @@ -201,6 +211,15 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> > *priv_data)
> > }
> >
> > skip_usb3_phy:
> > + /* ulpi reset via gpio-modepin or gpio-framework driver */
> > + if (reset_gpio) {
> > + /* Toggle ulpi to reset the phy. */
> > + gpiod_set_value(reset_gpio, 0);
> > + usleep_range(5000, 10000); /* delay */
> > + gpiod_set_value(reset_gpio, 1);
> > + usleep_range(5000, 10000); /* delay */
> > + }
> > +
> > /*
> > * This routes the USB DMA traffic to go through FPD path instead
> > * of reaching DDR directly. This traffic routing is needed to
> >
>
> Do we need to have this in dwc3? Why not just use the usb-nop-xceiv driver
> (aka usb_phy_generic)?
I hadn't noticed that option. Just tried it out and it seems like it does
what's needed. So patches 2 and 3 can be dispensed with. Patch 1 is still
needed however, I may resubmit that as a standalone patch..
>
> --Sean
--
Robert Hancock
Senior Hardware Designer, Calian Advanced Technologies
www.calian.com
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios
2022-01-26 23:40 ` [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios Robert Hancock
@ 2022-02-02 0:58 ` Rob Herring
0 siblings, 0 replies; 8+ messages in thread
From: Rob Herring @ 2022-02-02 0:58 UTC (permalink / raw)
To: Robert Hancock
Cc: linux-usb, balbi, gregkh, michal.simek, manish.narani,
sean.anderson, devicetree, piyush.mehta
On Wed, Jan 26, 2022 at 05:40:16PM -0600, Robert Hancock wrote:
> Update DT binding to reflect new reset-gpios property.
>
> Signed-off-by: Robert Hancock <robert.hancock@calian.com>
> ---
> Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> index f77c16e203d5..823ce731e95f 100644
> --- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> +++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> @@ -59,6 +59,10 @@ properties:
> - const: usb_hibrst
> - const: usb_apbrst
>
> + reset-gpios:
> + description: Optional GPIO connected to ULPI PHY reset line.
> + maxItems: 1
Reset for the PHY belongs in the PHY node.
> +
> phys:
> minItems: 1
> maxItems: 2
> --
> 2.31.1
>
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* RE: [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling
2022-01-26 23:40 ` [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling Robert Hancock
2022-01-27 20:10 ` Sean Anderson
@ 2022-02-09 16:56 ` Piyush Mehta
1 sibling, 0 replies; 8+ messages in thread
From: Piyush Mehta @ 2022-02-09 16:56 UTC (permalink / raw)
To: Robert Hancock, linux-usb
Cc: balbi, gregkh, Michal Simek, Manish Narani, sean.anderson,
robh+dt, devicetree
Hello Robert,
Thanks for patch.
All the Xilinx USB resets are ACTIVE_LOW reset.
Regards,
Piyush Mehta
> -----Original Message-----
> From: Robert Hancock <robert.hancock@calian.com>
> Sent: Thursday, January 27, 2022 5:10 AM
> To: linux-usb@vger.kernel.org
> Cc: balbi@kernel.org; gregkh@linuxfoundation.org; Michal Simek
> <michals@xilinx.com>; Manish Narani <MNARANI@xilinx.com>;
> sean.anderson@seco.com; robh+dt@kernel.org; devicetree@vger.kernel.org;
> Piyush Mehta <piyushm@xilinx.com>; Robert Hancock
> <robert.hancock@calian.com>
> Subject: [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling
>
> Hook up an optional GPIO-based reset for the connected USB ULPI PHY device.
> This is typically already done by the first-stage boot loader, however it can be
> more robust to ensure this reset is done prior to loading the driver in Linux.
>
> Based on a patch "usb: dwc3: xilinx: Add gpio-reset support" in the Xilinx kernel
> tree by Piyush Mehta <piyush.mehta@xilinx.com>.
>
> Signed-off-by: Robert Hancock <robert.hancock@calian.com>
> ---
> drivers/usb/dwc3/dwc3-xilinx.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
> index a6f3a9b38789..1ee6011ada44 100644
> --- a/drivers/usb/dwc3/dwc3-xilinx.c
> +++ b/drivers/usb/dwc3/dwc3-xilinx.c
> @@ -11,6 +11,7 @@
> #include <linux/slab.h>
> #include <linux/clk.h>
> #include <linux/of.h>
> +#include <linux/gpio/consumer.h>
> #include <linux/platform_device.h>
> #include <linux/dma-mapping.h>
> #include <linux/of_platform.h>
> @@ -101,6 +102,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> *priv_data)
> struct phy *usb3_phy;
> int ret = 0;
> u32 reg;
> + struct gpio_desc *reset_gpio;
>
> usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
> if (IS_ERR(usb3_phy)) {
> @@ -110,6 +112,14 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> *priv_data)
> goto err;
> }
>
> + reset_gpio = devm_gpiod_get_optional(dev, "reset",
> GPIOD_OUT_HIGH);
reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
Note: Xilinx Support active low resets
> + if (IS_ERR(reset_gpio)) {
> + ret = PTR_ERR(reset_gpio);
> + dev_err_probe(dev, ret,
> + "Failed to get reset gpio\n");
> + goto err;
> + }
> +
> /*
> * The following core resets are not required unless a USB3 PHY
> * is used, and the subsequent register settings are not required @@ -
> 201,6 +211,15 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx
> *priv_data)
> }
>
> skip_usb3_phy:
> + /* ulpi reset via gpio-modepin or gpio-framework driver */
> + if (reset_gpio) {
> + /* Toggle ulpi to reset the phy. */
> + gpiod_set_value(reset_gpio, 0);
> + usleep_range(5000, 10000); /* delay */
> + gpiod_set_value(reset_gpio, 1);
> + usleep_range(5000, 10000); /* delay */
> + }
> +
> /*
> * This routes the USB DMA traffic to go through FPD path instead
> * of reaching DDR directly. This traffic routing is needed to
> --
> 2.31.1
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2022-02-09 16:56 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-26 23:40 [PATCH v8 0/3] Xilinx ZynqMP USB fixes Robert Hancock
2022-01-26 23:40 ` [PATCH v8 1/3] usb: dwc3: xilinx: fix uninitialized return value Robert Hancock
2022-01-26 23:40 ` [PATCH v8 2/3] dt-bindings: usb: dwc3-xilinx: Added reset-gpios Robert Hancock
2022-02-02 0:58 ` Rob Herring
2022-01-26 23:40 ` [PATCH v8 3/3] usb: dwc3: xilinx: Add ULPI PHY reset handling Robert Hancock
2022-01-27 20:10 ` Sean Anderson
2022-01-27 21:45 ` Robert Hancock
2022-02-09 16:56 ` Piyush Mehta
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